body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
}
header, footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 1em 0;
}
.container {
            max-width: 200px;
            margin: 20px auto;
            padding: 20px;
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }
.about-section {
    text-align: center; /* Centers all child elements */
}
.about-section img {
    max-width: 300px;
    width: 100%;
    height: auto;
    display: block; /* Ensures no extra space around the image */
    margin: 0 auto; /* Centers the image horizontally */
    }
nav a {
    text-decoration: none;
    color: #333;
    margin: 0 1em;
    padding: 0.5em 1em;
    background: #ddd;
    border-radius: 5px;
}
nav a:hover {
    background: #bbb;
}
main {
    max-width: 800px;
    margin: 2em auto;
    padding: 1em;
    background: #fff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}